Engine test device

Abstract

An engine test device for an engine lubricating system includes: a frame having hinge units at upper front and rear sides thereof and an installing die integrally formed with a front lower portion thereof; a rotary beam hinge-connected to the front and rear hinge units of the frame to be rotated leftward and rightward, and having a fixed beam vertically installed at a central portion thereof; a plate-shaped surface plate rotatably mounted to a center of the fixed beam to fix the engine; and a driving unit configured between the installing die and the rotary beam through a gear unit to control a rotation angle of the rotary beam through control of driving of a motor.

What is claimed is: 
     
       1. An engine test device for an engine lubricating system, the engine test device comprising:
 a frame including hinge units at respective upper front and rear sides thereof, and including a support beam integrally formed with a front lower portion thereof; 
 a rotary beam hinge connected to the front and rear hinge units of the frame for rotating leftward and rightward, and including a fixed beam vertically installed at a central portion thereof; 
 a plate-shaped surface plate rotatably mounted to a center of the fixed beam to support the engine; and 
 a driving unit configured to control a rotational angle of the rotary beam with respect to the support beam, the driving unit including a gear unit driven by a motor. 
 
     
     
       2. The engine test device of  claim 1 , wherein the frame comprises:
 a front frame formed at a front side thereof to have a triangular shape and having the support beam at a front lower portion thereof; 
 a rear frame formed at a rear side thereof to have a triangular shape; and 
 a connecting beam connecting the front and rear frames at a lower portion thereof. 
 
     
     
       3. The engine test device of  claim 2 , wherein the front frame comprises a limit switch for detecting that the rotary beam is inclined at a predetermined angle and outputting a signal, and the limit switch is installed at a front upper portion of the front frame. 
     
     
       4. The engine test device of  claim 3 , wherein in the front hinge unit of the frame, a front hinge bracket integrally connected to a front end of the rotary beam is connected to an upper side of the front frame through a hinge shaft, and inclined surfaces are formed on opposite side surfaces of the front hinge bracket to contact the limit switch if the rotary beam is inclined by at least a predetermined angle. 
     
     
       5. The engine test device of  claim 2 , wherein in the rear frame, stoppers for preventing the rotary beam from being inclined by at least a predetermined angle are integrally formed with opposite sides of a rear upper side of the rear frame. 
     
     
       6. The engine test device of  claim 5 , wherein in the rear hinge unit of the frame, a rear hinge bracket integrally connected to a rear end of the rotary beam is connected to an upper side of the rear frame through the hinge shaft, and the rear hinge bracket has inclined surfaces on opposite side surfaces thereof to be supported by the stoppers if the rotary beam is inclined by at least a predetermined angle. 
     
     
       7. The engine test device of  claim 1 , wherein fixing pin units are installed on the rotary beam and the fixed beam so that the fixing pins are automatically inserted into fixing holes formed at peripheries of the surface plate, respectively. 
     
     
       8. The engine test device of  claim 7 , wherein the fixing pin unit comprises an electronic actuator for moving the fixing pins forward and rearward by using an electrical signal. 
     
     
       9. The engine test device of  claim 1 , wherein fixing members for fixing a lower side of the engine are installed at corners of an upper surface of the surface plate. 
     
     
       10. The engine test device of  claim 1 , wherein the driving unit comprises:
 the gear unit configured between the support beam and the front hinge unit to adjust a rotation angle of the front hinge unit through a change of the length of the gear unit using a rack/pinion structure in the gear housing; and 
 a motor installed at one side of the gear housing of the gear unit to provide a rotation driving force to the pinion. 
 
     
     
       11. The engine test device of  claim 10 , wherein the gear unit comprises:
 a gear housing a lower end of which is hinge-connected to one side of the support beam and having a hollow portion and a gear chamber therein; 
 a rack bar slidably inserted into the hollow portion of the gear housing, an upper end of which is hinge-connected to one side of the front hinge unit, and forming a rack along one side surface thereof; and 
 a pinion disposed in the gear chamber of the gear housing and engaged with the rack of the rack bar to receive the rotation driving force of the motor.